workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted

apply_wqattrs_commit() updates node_nr_active->max unconditionally.
wq->node_nr_active[] is only allocated for unbound workqueues, so guard
the call before per-cpu workqueues start using this path.

No functional change: only unbound workqueues reach apply_wqattrs_*()
today.

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/net/lapb/Kconfig b/net/lapb/Kconfig
new file mode 100644
index 000000000..da87b47f0
--- /dev/null
+++ b/net/lapb/Kconfig
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# LAPB Data Link Drive
+#
+
+config LAPB
+	tristate "LAPB Data Link Driver"
+	help
+	  Link Access Procedure, Balanced (LAPB) is the data link layer (i.e.
+	  the lower) part of the X.25 protocol. It offers a reliable
+	  connection service to exchange data frames with one other host, and
+	  it is used to transport higher level protocols (mostly X.25 Packet
+	  Layer, the higher part of X.25, but others are possible as well).
+	  Usually, LAPB is used with specialized X.21 network cards, but Linux
+	  currently supports LAPB only over Ethernet connections. If you want
+	  to use LAPB connections over Ethernet, say Y here and to "LAPB over
+	  Ethernet driver" below. Read
+	  <file:Documentation/networking/lapb-module.rst> for technical
+	  details.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called lapb.  If unsure, say N.